John Overdeck Two Sigma Investments
John Overdeck is a co-founder of Two Sigma Investments, one of the world’s leading quantitative and technology-driven investment firms. Two Sigma applies data science, machine learning, and large-scale computing to markets across asset classes. Overdeck’s firm is a central reference point in discussions of modern systematic investing.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$474M |
| 2 |
State Street Consumer Staples Select Sector SPDR ETF
XLP
|
+$357M |
| 3 |
Accenture
ACN
|
+$246M |
| 4 |
Advanced Micro Devices
AMD
|
+$235M |
| 5 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$231M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$381M |
| 2 |
State Street Technology Select Sector SPDR ETF
XLK
|
+$375M |
| 3 |
iShares Expanded Tech-Software Sector ETF
IGV
|
+$348M |
| 4 |
Thermo Fisher Scientific
TMO
|
+$292M |
| 5 |
Snowflake
SNOW
|
+$258M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 16.18% |
| 2 | Financials | 15.54% |
| 3 | Industrials | 10.5% |
| 4 | Healthcare | 9.8% |
| 5 | Consumer Discretionary | 8.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
MRP
676
Millrose Properties Inc
MRP
$5.04B
| $16M | 0.02% |
+474,618
| New | +$15.3M |
|
677
PUT
Century Aluminum
CENX
$4.47B
| $15.9M | 0.02% |
542,200
| – | – |
|
678
Elbit Systems
ESLT
$34.5B
| $15.9M | 0.02% |
31,193
+8,229
| +36% | +$3.86M |
|
679
Reinsurance Group of America
RGA
$16B
| $15.9M | 0.02% |
+82,654
| New | +$15.8M |
|
680
Schrodinger
SDGR
$1.43B
| $15.9M | 0.02% |
791,064
-30,087
| -4% | -$605K |
|
681
ScottsMiracle-Gro
SMG
$3.52B
| $15.9M | 0.02% |
278,413
+241,521
| +655% | +$15.2M |
|
682
Curtiss-Wright
CW
$22.9B
| $15.8M | 0.02% |
29,170
-75,060
| -72% | -$37M |
|
683
Uranium Energy
UEC
$6.21B
| $15.8M | 0.02% |
+1,183,581
| New | +$11.8M |
|
684
ESAB
ESAB
$4.9B
| $15.7M | 0.02% |
140,880
+54,286
| +63% | +$6.46M |
|
685
RBC Bearings
RBC
$15.8B
| $15.7M | 0.02% |
40,273
+36,007
| +844% | +$14M |
|
686
Acushnet Holdings
GOLF
$5.24B
| $15.7M | 0.02% |
199,707
+81,789
| +69% | +$6.35M |
|
|
DX
687
Dynex Capital
DX
$3.23B
| $15.6M | 0.02% |
1,265,386
+350,766
| +38% | +$4.39M |
|
688
Rogers Communications
RCI
$19.5B
| $15.5M | 0.02% |
450,182
+74,325
| +20% | +$2.56M |
|
689
Post Holdings
POST
$3.77B
| $15.5M | 0.02% |
144,364
+137,639
| +2,047% | +$14.8M |
|
690
Ceco Environmental
CECO
$4.13B
| $15.5M | 0.02% |
302,691
+294,556
| +3,621% | +$12.5M |
|
691
Archrock
AROC
$5.45B
| $15.5M | 0.02% |
587,812
+430,879
| +275% | +$10.4M |
|
692
Herbalife
HLF
$1.34B
| $15.5M | 0.02% |
1,832,322
+503,583
| +38% | +$4.75M |
|
693
Vale
VALE
$64.5B
| $15.4M | 0.02% |
+1,421,715
| New | +$14.5M |
|
694
Cinemark Holdings
CNK
$4.43B
| $15.4M | 0.02% |
550,963
-121,802
| -18% | -$3.36M |
|
695
Kemper
KMPR
$1.63B
| $15.4M | 0.02% |
298,879
+227,197
| +317% | +$12.8M |
|
696
Maximus
MMS
$3.05B
| $15.4M | 0.02% |
+168,517
| New | +$13.7M |
|
697
City Holding Co
CHCO
$2.03B
| $15.3M | 0.02% |
123,803
+71,436
| +136% | +$8.96M |
|
698
Dick's Sporting Goods
DKS
$16.3B
| $15.3M | 0.02% |
+68,887
| New | +$15M |
|
699
Prosperity Bancshares
PB
$8.78B
| $15.3M | 0.02% |
230,460
+175,477
| +319% | +$12.1M |
|
700
Trinity Capital Inc
TRIN
$1.75B
| $15.3M | 0.02% |
986,184
+448,626
| +83% | +$6.95M |
|
Similar funds
John Overdeck's Q3 2025 Portfolio in Review
As of Q3 2025, John Overdeck held 4,027 positions worth $67.2B, up 19% from $56.5B the previous quarter. Its ten largest holdings account for 6.2% of the portfolio.
John Overdeck deployed $4.46B of net new capital in Q3 2025, opening 877 new positions and adding to 1,461 existing holdings. Its largest new stake was Berkshire Hathaway Class B: 379,096 shares worth $191M.
By sector, the portfolio is most concentrated in Technology at 16% of assets, down from 17% a quarter earlier, followed by Financials and Industrials.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $381M trimmed.
- John Overdeck's largest Q3 2025 buy was Berkshire Hathaway Class B: 379,096 shares worth $191M.
- John Overdeck added most to State Street Financial Select Sector SPDR ETF in Q3 2025, an estimated $474M increase.
- John Overdeck's biggest Q3 2025 reduction was Invesco QQQ Trust, cutting an estimated $381M.
- John Overdeck fully exited NextEra Energy, Inc. 6.926% Corporate Units in Q3 2025, selling an estimated $115M.
- John Overdeck's ten largest holdings make up 6.2% of its $67.2B portfolio in Q3 2025.
- John Overdeck opened 877 new positions and closed 399 in Q3 2025.
- John Overdeck's portfolio value rose 19% quarter-over-quarter to $67.2B.
Based on Two Sigma Investments's 13F filing for Q3 2025, filed 14 Nov 2025.